books.google.com - A classic since 1928, this masterly encyclopedia of ancient mythology, ritual, symbolism, and the arcane mysteries of the ages is available for the first time in a compact &quot;reader&#39;s edition.&quot;Like no other book of the twentieth century, Manly P. Hall&#39;s legendary The Secret Teachings...http://books.google.com/books/about/The_Secret_Teachings_of_All_Ages.html?id=kZIaOt4xwnwC&q=Pythagorean&utm_source=gb-gplus-shareThe Secret Teachings of All Ages